OR

source:wikipedia.org
31 Jul, 1923
18 Jun, 2014
Natural causes
Polish, American
Chemist
90
Stephanie Louise Kwolek, a Polish-American chemist, was born on July 31, 1923 in New Kensington, Pennsylvania. Her groundbreaking work led to the development of Kevlar, which saved countless lives and revolutionized many industries. Stephanie Kwolek was born to Polish immigrant parents. Her father, a naturalist, inspired her passion for science and nature. After his death, when Stephanie was only 10 years old, her mother’s sewing was the sole support of the family. Kwolek’s career was influenced by her early exposure to science and textiles.
Despite initially considering a career in fashion, Kwolek’s perfectionistic nature led her to pursue pharmacy instead. In 1946, Kwolek graduated from Margaret Morrison Carnegie College (now part of Carnegie Mellon University) with a Bachelor of Science degree in chemistry.
Kwolek joined DuPont as a chemist in 1946 to save for medical school. But exciting polymer research she encountered there changed her plans. She opted for a lifelong career in chemistry.
Kwolek’s most important contribution came in the 1960s when she was commissioned to find a new, lighter but stronger fiber to replace steel in tires. Her work with aromatic polyamides led to a breakthrough in 1965. Kwolek discovered that under certain conditions a number of rod-shaped polyamide molecules would collide in symmetry, forming a liquid crystalline solution. These solutions could be turned into fibers with exceptional strength and stiffness.
This process led to the development of Kevlar, a fiber five times stronger than steel. Kevlar’s applications range from bulletproof vests to aircraft parts, bridge cables and even sports equipment.
Throughout her career and after her retirement in 1986, Kwolek served as a mentor to other women scientists. She participated in programs that exposed young children to science. She held 17 US patents and authored or co-authored 28 books.
Stephanie Louise Kwolek passed away on June 18, 2014 in Wilmington, Delaware, at the age of 90. Her legacy lives on in the lives saved by Kevlar and her pioneering work for women in science.
Kwolek’s life story is an example of perseverance, innovation and the power of accidental discovery. Her work highlighted how basic research can impact society broadly.
Stephanie Kwolek
Stephanie Kwolek
Female
Natural causes
New Kensington, Pennsylvania, United States
Wilmington, Delaware, United States
Virtuoso: Bold and practical experimenters, masters of all kinds of tools. Known for her hands-on approach and attention to detail, Kwolek was an innovative thinker and problem-solver. She remained focused on practical applications of science, which was key to her success in industrial chemistry.
Despite her accomplishments, Kwolek initially considered becoming a doctor before pursuing a career in chemistry
Kevlar has been widely used in bulletproof vests, sports equipment, and countless other applications, saving thousands of lives
Kwolek’s invention, Kevlar, is five times stronger than steel by weight
She spent over 40 years with DuPont, primarily in polymer research
DuPont’s Lavoisier Medal for outstanding technical achievement (1995)
Induction into the National Inventors Hall of Fame (1995)
Induction into the National Women’s Hall of Fame (2003)
National Medal of Technology (1996)
Perkin Medal from the American Chemical Society (1997)